Drain opener



Slept- 1940- w. c. LUNDSTROM DRAIN OPENER Filed Dec. 28, 1938 2Sheets-Sheet 1 By and Z5 Attorneys Sept. 17, 1940. w. c. LUNDSTROM DRAINOPENER Filed Dec. 2S, 1938 2 Sheets-Sheet 2 IIIIHII lllllll'-l'lllllllllllllll'lllll -Hlll|ll||lllllllllllll Inventor MAL/4M 6.LUIIVDSTAOM,

- Attorneys Patented Sept. 17, 1940 UNITED-STATES PATENT OFFICE DRAINOPENER.

William G. Lundstrom, Spokane, Wash.

Application December 28, 1938, Serial No. 248,137

1 Claim.

mouth of a drain and to a faucet of the water system whereby the waterpressure may be employed to dislodge any obstruction in the drain and tothoroughly flush the latter of any foreign matter, the device beingself-sustaining after being applied and may be readily attached toeither the hot or cold water faucets.

With these and other objects in view, the invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is a side elevation, partly in section, illustrating a drain openerconstructed in accordance with my invention and showing the to a faucet.

Figure 2 is a vertical sectional view illustrating the drain cup and itsconnection with a hose.

Figure 3 is a sectional view taken on the line 33 of Figure 2.

Figure 4 is a sectional view taken on the line 4-4 of Figure 2.

Figure 5 is a fragmentary vertical sectional view illustrating a fittingfor connecting the hose of the device onto a faucet.

Referring in detail to the drawings, the nur meral 5 indicates asubstantially conical-shaped drain engaging member which includes a neck6 having a bore 1 partly screw threaded to receive a screw threadedsleeve or fitting 8 employed for connecting to the neck 6 a hose 9including the usual female type fitting Ill. The sleeve 8 is offsetexteriorly of the neck 6 to form a chamber in which is positioned aspider I I.

The substantially conical-shaped member 5 or cup has at its mouth 'aflange I2 provided with a bevel face I3 presenting in the cup aninternal shoulder M, The member or cup 5 is reinforced by a metallicring I5 positioned therein adjacent the flange Hi.

The bevel face I3 of the flange I2, when the member 5 is detached,flares outwardly and is adapted to be brought in seated engagement witha wall I6 of a sink or like device I! directly over a drain I8 bydistending the same.

The member 5 is outwardly bowed above the flange I2 and the ring I5larger in diameter than the shoulder I4, said ring being fitted in thebowed portion of the member 5 whereby it is frictionally' locked to themember above the shoulder I4 to drop down on said shoulder when saidflange I2 is distended and retain the same in distended position.

The spider II has threaded thereto a rod I9 terminating at one end inthe form of a hook 20 to engage with the usual spider or similar device2| located in the drain I8. The other end of the rod extends outwardlyof the sleeve 8 and may be rotated for drawing the cup or member 5tightly against the wall I8 of the sink or similar device so as toprevent air from entering the drain between the wall I6 and the cup ormember. The sleeve 8 is then connected with the hose 9, the latterhaving at its other end a fitting I9 to connect with a faucet 20 so thatwater under pressure may be directed into the drain for dislodging anobstruction therein and 20 for flushing the drain of any foreign matter.With the cup or member 5 secured on the drain as described and thefitting I9 adapted to the faucet the device will be self-sustainingwhile in operation. 25

It is to be understood that the cup or member 5 including the neck 6 isconstructed of rubber or some other material suitable for the purpose sothat the devicewill readily adjust itself to the wall of the sink overthe drain when applied thereto to prevent the escape of water whendirected into the drain under pressure.

The fitting I9 is in the form of an elastic sleeve 22 which may bereadily stretched over one end of the hose 9 and its opposite end isturned back upon itself, as shown at 23, to form a reinforcing flange.The latter-named end with the reinforcing flange 23 is adapted to bestretched'over the nozzle or discharge end of the faucet so that thefitting will be self-sustaining on the faucet as well as on the hose andcan be easily removed from either when desired.

Through the use of this present device a drain can be flushed either byhot or cold water under pressure depending on which faucet the fittingI9 is adapted to.

It is believed that the foregoing description, when taken in connectionwith the drawings will fully set forth the construction and advantagesof this invention to those skilled in the art to which device relates,so that further detailed description will not be required.

Having thus described my invention, I claim:

A drain opener comprising a yielding cup member adapted forapplication-to a wall of a sink, 55

or the like, over a drain opening and operative as a combination suctioncup and suction pump, said member having an annular laterally extendingflange around the mouth thereof forming a wide flat attaching rim onsaid mouth normally flaring outwardly for gradual application to saidwall under downward pressure on the cup member to effect a suction gripby said member on said wall, said flange providing an annular internalshoulder in said member, a reinforcing ring loose in said member andsurmounting said shoulder to hold said flange in shape when applied, aneck on said member internally threaded,

a sleeve threaded in the said neck and protruding therefrom, a spider insaid sleeve confined therein, a rod threaded into the spider and havinga hooked lower end for attachment to a fixed part in said drain, saidsleeve having a threaded upper end for attachment to a hose line leadingfrom a faucet, said flange being distensible to flex said rim fiatagainst said wall, said ring being frictionally locked to the inner wallof said cup member above said shoulder for release under distension ofsaid flange to drop down onto said shoulder when the flange is fullydistended and retain said flange in such position.

WILLIAM C. LU'NDSTROM.

